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1. 发明公开

EP3975283A1 SECONDARY BATTERY 审中-公开
公开(公告)号：EP3975283A1
公开(公告)日：2022-03-30
申请号：EP20809474.8
申请日：2020-05-19
申请人： Samsung SDI Co., Ltd.
发明人： KIM, Mun Sung
IPC分类号： H01M2/26 , H01M2/12 , H01M2/22 , H01M2/04 , H01M10/0587 , H01M10/052 , H01M2/02
摘要： An embodiment of the present invention relates to a secondary battery, and the problem to be solved by the present invention is to provide a secondary battery in which output is improved by minimizing component resistance or internal resistance, and in which material costs may be reduced. To this end, disclosed is a secondary battery comprising: a cylindrical can having an opening; an electrode assembly accommodated in the opening of the cylindrical can and wound in a cylindrical form; a current collector plate electrically connected to the electrode assembly; and a safety vent electrically connected to the current collector plate and sealing the opening of the cylindrical can.

2. 发明公开

EP3961746A1 ACCUMULATION DEVICE VALVE STRUCTURE 审中-公开
公开(公告)号：EP3961746A1
公开(公告)日：2022-03-02
申请号：EP20795642.6
申请日：2020-04-27
申请人： Dai Nippon Printing Co., Ltd.
发明人： SASAKI, Miho
IPC分类号： H01M2/12 , H01G11/14
摘要： Provided is a valve structural body that is easy to attach to a container. The valve structural body is for a power storage device, and includes a casing in which a passage through which gas generated inside of the container is discharged to the outside of the container is formed, and a valve mechanism that is accommodated in the casing and allows the gas to pass through the passage to the outside of the container via the passage if the internal pressure of the container has risen due to the gas generated inside of the container. The casing includes a first plane, and a second plane that is parallel to the first plane.

3. 发明公开

EP3944359A1 BATTERY MODULE 审中-公开
公开(公告)号：EP3944359A1
公开(公告)日：2022-01-26
申请号：EP19921804.1
申请日：2019-12-26
申请人： SANYO Electric Co., Ltd.
发明人： EGASHIRA, Takuya , FUJII, Yusuke , TAKEDA, Nao
IPC分类号： H01M2/10 , H01M2/12
摘要： In order to enhance safety of a battery module, the battery module includes: battery stack (2) including a plurality of batteries (14) that are stacked, each of the plurality of batteries (14) having valve portion (24); duct plate (28) configured to cover a surface of battery stack (2) on which the plurality of valve portions (24) are disposed, duct plate (28) having gas discharge duct (38) that is connected to valve portions (24) of respective batteries (14), and temporarily stores a blown-off gas; cover plate (60) placed on duct plate (28); and flow path portion (76) defined by duct plate (28) and cover plate (60), flow path portion (76) extending from gas discharge duct (38) and allowing leaking of a gas in gas discharge duct (38) to an outside of battery module (1). Cover plate (60) is disposed in a state where a predetermined gap is formed between cover plate (60) and first wall portion (34) of gas discharge duct (38) that faces valve portions (24), and opening (82) that allows an inside of gas discharge duct (38) and the gap to communicate with each other is formed in first wall portion (34) of gas discharge duct (38).

4. 发明公开

EP3916876A1 BATTERY PACK 审中-公开
公开(公告)号：EP3916876A1
公开(公告)日：2021-12-01
申请号：EP19911251.7
申请日：2019-12-09
申请人： SANYO Electric Co., Ltd.
发明人： WAKABAYASHI, Takeaki , TAKEDA, Kensaku
IPC分类号： H01M10/0566 , H01M2/10 , H01M2/12
摘要： Safety is ensured by suppressing adverse effects caused by a high-temperature discharge gas ejected from a discharge valve of a battery. A battery pack includes battery cell (1) having a discharge valve opened when an internal pressure exceeds a set pressure, and case (2) housing battery cell (1). Case (2) has opening (26), and opening (26) is blocked by porous plate (5) made of resin. Porous plate (5) has a plurality of through-holes (5a), an expansion gap of a discharge gas is formed by stacking a plurality of the porous plates (5), through-holes (5a) provided in each of porous plates (5) are arranged at non-facing positions not facing through-holes (5a) provided in adjacent another porous plate (5), and the discharge gas of the discharge valve passes through through-holes (5a) provided in porous plates (5) and the expansion gap and is discharged to an outside of the case.

5. 发明公开

EP3912201A1 PLASTIC CELL SWELLING RESTRAINT FEATURE 审中-公开
公开(公告)号：EP3912201A1
公开(公告)日：2021-11-24
申请号：EP20705577.3
申请日：2020-01-17
申请人： CPS Technology Holdings LLC
发明人： LEE, Eric, Kar Wai , ELISON, Nicholas, E. , PETRIE, Jordan, David
IPC分类号： H01M2/02 , H01M2/12

6. 发明公开

EP3909084A1 ELECTRIC BATTERY ASSEMBLIES 审中-公开
公开(公告)号：EP3909084A1
公开(公告)日：2021-11-17
申请号：EP20700990.3
申请日：2020-01-13
申请人： Dukosi Limited
发明人： CUNNINGHAM, Stuart , LEWORTHY, Josh , MAIR, Stuart , SYLVESTER, Joel
IPC分类号： H01M2/10 , H01M10/42 , H01M10/48 , H01M2/12 , H01R4/48 , H01R11/28 , H01M2/06 , H01M2/30

7. 发明公开

EP3906588A1 ENTGASUNGSEINHEIT, ELEKTRONIKGEHÄUSE, INSBESONDERE BATTERIEGEHÄUSE, UND KRAFTFAHRZEUG 审中-公开
公开(公告)号：EP3906588A1
公开(公告)日：2021-11-10
申请号：EP19827640.4
申请日：2019-12-10
申请人： MANN+HUMMEL GmbH
发明人： ZBIRAL, Robert , LIEBENDÖRFER, Axel
IPC分类号： H01M2/12 , F16K17/04 , F16K17/164

8. 发明公开

EP3905426A1 BATTERY MODULE COMPRISING COOLING MEMBER AND BATTERY PACK AND POWER STORAGE DEVICE 审中-公开
公开(公告)号：EP3905426A1
公开(公告)日：2021-11-03
申请号：EP20827285.6
申请日：2020-05-27
申请人： LG ENERGY SOLUTION, LTD.
发明人： YOO, Jae-Min , MUN, Jeong-O , SHIN, Eun-Gyu , LEE, Yoon-Koo
IPC分类号： H01M10/6556 , H01M10/6554 , H01M2/12 , H01M10/627 , H01M10/613 , H01M2/10 , H01M2/20
摘要： Disclosed is a battery module that reduces the risk of secondary ignition or explosion and increases durability against external impacts. The battery module includes a plurality of secondary batteries respectively having a gas venting portion for discharging a gas generated therein to the outside at a predetermined pressure and arranged in a front and rear direction in two rows; and a cooling member including a body portion interposed between two rows of the plurality of secondary batteries and having a size corresponding to left and right sides of the plurality of secondary batteries, and a gas discharge portion provided to at least one of an upper portion and a lower portion of the body portion and having a gas discharge passage elongated from a front end to a rear end of the body portion.

9. 发明公开

EP3902024A1 SEALED BATTERY 审中-公开
公开(公告)号：EP3902024A1
公开(公告)日：2021-10-27
申请号：EP19898426.2
申请日：2019-11-13
申请人： SANYO Electric Co., Ltd.
发明人： NOGAMI, Takahiro , YOSHIDA, Masayoshi , OKUTANI, Oose , TAKANO, Akira
IPC分类号： H01M2/04 , H01M2/12 , H01M2/22 , H01M2/26
摘要： The purpose of the present disclosure is to provide a sealed battery that demonstrates stable exhaust performance when an abnormality occurs in the battery, and that has excellent shock resistance. This sealed battery that is an example of an embodiment of the present disclosure is provided with: a battery case that includes a bottomed cylindrical outer can and an opening-sealing body that closes an opening section of the outer can; and an electrode body that is accommodated inside the battery case. The opening-sealing body includes a metal plate, and the metal plate includes a protruding section that bulges toward the outside of the battery case, and a flange section that is formed on the circumference of the protruding section. The protruding section includes an inclination section that inclines inward from the radial outside of the opening sealing body so as to be progressively separated from the electrode body, wherein a thin wall section, which has a thickness less than portions other than the inclination section and is preferably broken when the inner pressure of the battery case exceeds a predetermined threshold, is formed in at least a portion of the inclination section.

10. 发明公开

EP3868684A1 VALVE AND PACKAGE PROVIDED WITH SAME 审中-公开
公开(公告)号：EP3868684A1
公开(公告)日：2021-08-25
申请号：EP19872381.9
申请日：2019-10-15
申请人： Dai Nippon Printing Co., Ltd.
发明人： SASAKI, Miho , TAKAHAGI, Atsuko
IPC分类号： B65D81/26 , F16K15/18 , F16K17/16 , H01M2/12
摘要： Provided is a valve for forming a passage through which the inside and the outside of the packaging container constituted by resin molded articles or films are in communication with each other. The valve includes a breakable valve that is arranged so as to block the passage and splits open when internal pressure of the packaging container increases due to gas generated inside the packaging container, a check valve that is arranged on a secondary side located on an outer side with respect to the breakable valve in the passage and through which the gas is discharged from the inside of the packaging container to the outside thereof according to internal pressure of the packaging container after the breakable valve has split open, and an attachment portion that delimits at least a portion of the passage and is fixed to the packaging container in a state of being sandwiched between the resin molded articles or the films constituting the packaging container.

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